About this trial
This study aims to investigate the effects of EIT-guided and Pplat-guided Phigh settings on regional ventilation and perfusion in ARDS patients during APRV, while also examining the impact of different Phigh settings on gas exchange, respiratory mechanics, and hemodynamics.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Diagnosed with ARDS according to the 2023 global new definition of ARDS.
Age ≥ 18 years.
Disqualifiers
Severe chronic obstructive pulmonary disease, severe asthma, pulmonary bullae, pneumothorax, subcutaneous emphysema, mediastinal emphysema, etc. · Contraindications for EIT, such as chest wound dressing, pacemaker implantation, defibrillator use, etc.
Pulmonary interstitial disease.
Uncorrected shock of various types.
Intracranial hypertension.
Trial design
Crossover
Treatments tested in this trial
EIT-guided Phigh settings during APRV
DeviceThe Phigh level selected for the patients in the Intervention group was the intercept point of cumulated collapse and overdistension percentage curves, providing the best compromise between collapsed and overdistended lung.
Treatment groups
Trial outcomes
Primary outcomes
The effects of Phigh guided by different methods on regional lung ventilation assessed by EIT
Secondary outcomes
Global inhomogeneity assessed by electrical impedance tomography
Center of ventilation assessed by electrical impedance tomography
ventilation/perfusion matching assessed by EIT
Respiratory system compliance
Tidal volume divided by plateau pressure
Sponsors and contacts
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XiaoJing Zou,MD
Lead sponsor
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Sponsor institution
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Collaborator